Group 2 will have bilateral PVB catheters inserted using the ultrasound. Patients will be in prone position and will receive intravenous sedation similar to Group 1. The T8 spine will be identified and marked counting from the lumbar area. A high-frequency linear ultrasound probe will be positioned in the T8/9 intercostal space with the transverse process and pleura in the field as well as the internal intercostal membrane. (about 2.5 cm lateral to the spinous process) Using ultrasound guidance and an in-plane approach, a 17 gauge Tuohy needle connected to 15 mL of 0.5% ropivacaine via an extension tubing will be inserted to puncture the internal intercostal membrane. Injection of local anesthetic will push the pleura away, which will be the end point of needle position (the current standard technique in the the investigators institution). A curved pigtail catheter will be inserted while observing its delivery extrapleurally and further 5mL of local anesthetic will be injected while observing further movement of pleura. A similar procedure will be done on the contralateral side at the same level. The catheter will be secured to the skin and covered with dermabond and tegaderm. Following this, 0.2% ropivacaine will be infused at a rate of 7 mlLhr via each catheter for the next 72 hours post-operatively. They will also receive intravenous patient controlled analgesia with dilaudid at a dose of 0.2mg with a lock out of 6 mins. Additional nurse administered boluses of 5-10mL of ropivacaine 0.2% via the paravetebral catheters will be permitted every 6 hourly to the side of maximal pain. The position of the catheter will be confirmed on the routine post-operative chest x ray following the injection of contrast (Isovue: 2 mL). The sensory block extent will be documented at 15 minutes after the initial injection and prior to moving the patient to the OR. Time to initiate the block and the failure rate will be documented.